Hydrogen storage in inactive horizontal shale gas wells: Techno-economic analysis for Haynesville shale

Harpreet Singh

Applied Energy, 2022, vol. 313, issue C, No S0306261922002963

Abstract: The operator of an inactive well is required to plug and abandon (P&A) that well, which costs ∼$300 k each for a shale lateral and is counted as a debt-like liability for the operator. The financial liability associated with an inactive shale gas lateral can be lifted if these wells are re-purposed into hydrogen storage repositories. From a technical perspective of hydrogen storage, depleted shale gas laterals offer several advantages over traditional underground hydrogen storage systems, which include qualitatively better containment, no requirement of cushion gas, no water in the storage space, relatively pure hydrogen, besides others. Overall, considering several factors, depleted/inactive laterals seem to be the most suitable hydrogen storage facility compared to other underground storage facilities.

Keywords: Hydrogen storage; Shale; Cost; Horizontal well; Hydraulic fractures (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (8)

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DOI: 10.1016/j.apenergy.2022.118862

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